PLZ ANSWER MY ALL QUESTIONS
SCIENCE = ELECTRICITY AND CIRCUIT
Answers
Ans:-1)An open circuit is defined to be basically a circuit where the energy is not flowing through it. A closed-circuit is defined to be the one where the energy is allowed to flow through it by turning it on. A circuit is made closed if the electricity is flowing from an energy source to the desired endpoint of the circuit.
Ans:-2)Flow of charges and ions constitute electric current. As our body cells contain various ions like sodium ion , potassium ion , chloride ion etc which have the tendency to conduct electricity and this makes our body good conductor of electricity.
Ans:-3)Never touch or try repairing any electrical equipment or circuits with wet hands. It increases the conductivity of electric current.
Ans:-4)Advantages of a dry cell are:
•The compact size of a dry cell makes it suitable for powering small electronic devices.(toys, flashlights, portable radios, cameras, hearing aids)
•The electrolyte used in dry cell is relatively not so harmful to the environment.
Ans:-5)The full form of TORCH is toxoplasmosis, rubella cytomegalovirus, herpes simplex, and HIV.
A torch is a practical example of a simple electric circuit. It is an electric device that emits light. It consists of a bulb, electric cells, a switch, a reflector, and a cylindrical shape casing. Bulb: The bulb emits light when electric current flows through its filament.
Ans:-6)A conductor allows current to flow easily through it. An Insulator doesn't allow current to flow through it. Electric charge exists on the surface of conductors. Electric charges are absent in insulators.
Ans:-7)A bulb is the glass part of an electric lamp, which gives out light when electricity passes through it.
There should be an electrical source, i.e., one or more electric cells connected to a circuit. There should not be any gaps or discontinuity in the wires connected to the circuit.The switch connected to the circuit should be kept closed.